作物研究2017，Vol.31Issue(1)：59-65,7.DOI:10.16848/j.cnki.issn.1001-5280.2017.01.16
施氮量与密度对浏阳烤烟产质量的耦合效应
CoupIing Effects of Different Nitrogen AppIication Rate and PIanting Density on YieId and QuaIity of FIue -cured Tobacco in Liuyang
摘要
Abstract
In order to investigate the coupling effects of nitrogen fertilizer rate and planting density on economic traits and chemical quality of flue -cured tobacco in Liuyang tobacco area,a field experiment with 3 nitrogen application rates,150 kg/hm2 (A1),180 kg/hm2 (A2)and 210 kg/hm2 (A3),and 3 planting densities,15 000 plant/hm2 (B1),16 500 plant/hm2 (B1)and 18 000 plant/hm2 (B1),were carried out.The results showed that (1)the yield and output value showed the increase -decrease trend with the increment of nitrogen application rate and planting density in this study,and the cou-pling effect of A2B2 and A2B3 was the best.(2)The physical characters of tobacco leaves were evidently affected by ni-trogen application rate and planting density,weight per leaf of A3B1 treatment was the biggest,and the stem ratios of A2B1 and A2B2 treatment was the lowest.(3)The appearance quality of cured tobacco leaves unclearly affected by density, while evidently affected by nitrogen application rate and appearance quality of A2 treatment was the best.(4)The chemi-cal components and its coordination of cured leaves were significantly affected by nitrogen application rate and planting density.Comprehensively considered nicotine,K content and coordination of chemical components,chemical quality of the middle leaves of A2B3 treatment was the best,and chemical quality of upper leaves of A2B2 treatment was the best.So the coupling effects of nitrogen 180 kg/hm2 and planting density 16 500 ~18000 plant/hm2 on yield,output value and leaves quality were the best.关键词
烤烟/施氮量/移栽密度/产量/质量/耦合效应Key words
flue -cured tobacco/nitrogen application rate/planting density/yield/quality/coupling effects分类
农业科技引用本文复制引用
张雨薇,裴晓东,黎娟,周清明,易镇邪..施氮量与密度对浏阳烤烟产质量的耦合效应[J].作物研究,2017,31(1):59-65,7.基金项目
国家烟草局重大专项（TS -01）；湖南省烟草公司科技项目（11-14Aa01）；长沙市烟草公司项目（12218，12231）。 （）
